# WM_SIZE_MP_PARENT_SEND_BUFFER

## C Specification

      #include <nitro/wm.h>

      WM_SIZE_MP_PARENT_SEND_BUFFER( parentMaxSize, ksFlag )

## Description

This is a function macro that looks for the size as a constant value in the send buffer that the SDK uses internally for MP communications.

## Arguments

`parentMaxSize` | Designates the maximum data size to be sent to the child device from the parent device.
`ksFlag` | A Boolean value that indicates whether to use key sharing.

## Return Values

This function returns the size that needed for the send buffer to be passed as the argument of `WM_StartMP`.

## See Also

`WM_StartMP`, `WM_GetMPSendBufferSize`, `WM_SIZE_MP_PARENT_RECEIVE_BUFFER`, `WM_SIZE_MP_CHILD_RECEIVE_BUFFER`, `WM_SIZE_MP_CHILD_SEND_BUFFER`

## Revision History

09/09/2004 Added the ksFlag to arguments
08/18/2004 Initial version